Security Bulletin: IBM SPSS Modeler CPU utilization (CVE-2014-0963)

Security Bulletin

Summary

IBM SPSS Modeler is affected by a problem related to the SSL implementation which, under very specific conditions, can cause CPU utilization to rapidly increase.

Vulnerability Details

CVE ID: CVE-2014-0963

DESCRIPTION:
IBM SPSS Modeler Server is affected by a problem with the handling of certain SSL messages. The TLS implementation can, under very specific conditions, cause CPU utilization to rapidly increase. The situation occurs only in a certain error case that causes a single thread to begin looping. If this happens multiple times, more threads will begin to loop and an increase in CPU utilization will be seen. This increase could ultimately result in CPU exhaustion and unresponsiveness of the IBM SPSS Modeler Server and other software running on the affected system.

This issue can affect the availability of the system, but does not impact system confidentiality or integrity. This vulnerability can be remotely exploited, authentication is not required and the exploit is moderately complex.

To determine if your systems are being affected by this issue, you can monitor the CPU utilization for IBM SPSS Modeler Server instances.

CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/92844 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C)

Affected Products and Versions

SPSS Modeler Server 16.0

Remediation/Fixes

IBM has provided patches for all affected versions. Follow the installation instructions in the README files included with the patch.

Apply SPSS Modeler 16.0 Interim Fix 13

Workarounds and Mitigations

Monitor CPU utilization of your Program Name instances. If utilization becomes abnormally high, stop and restart the affected instance.

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References

Complete CVSS v2 Guide
On-line Calculator v2

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*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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Tips

Security Bulletin: IBM SPSS Modeler CPU utilization (CVE-2014-0963)